A) It has an angular shape
B) lt decolourises acidified potassium permanganate solution
C) Two S?O bonds are equal
D) It is a dehydrating agent
Correct Answer: D
Solution :
Sulphur dioxide has angular shape because of the presence of one lone pair of electrons.
It reduces the acidified permanganate to \[\text{M}{{\text{n}}^{\text{2+}}}\text{,}\]thus, decolourises the acidified\[\text{KMn}{{\text{O}}_{4}}\] solution. \[5S{{O}_{2}}+\underset{\text{coloured}}{\mathop{2MnO_{4}^{-}}}\,+2{{H}_{2}}O\xrightarrow{{}}5SO_{4}^{2-}\] It is not a dehydrating agent.
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